Add missing virtual destructor

Author: tolauwae

src/Interpreter/interpreter.cpp

@@ -462,3 +462,5 @@ void Interpreter::report_overflow(Module *m, uint8_t *maddr) {
              m->memory.bytes + m->memory.pages * (uint32_t)PAGE_SIZE, maddr);
     sprintf(exception, "out of bounds memory access");
 }
+
+Interpreter::~Interpreter() {}

src/Interpreter/interpreter.h

@@ -6,6 +6,8 @@
 
 class Interpreter {
    public:
+    virtual ~Interpreter();
+
     /**
      * Push a new frame on to the call stack
      * @param m module